30 FREE MATHEMATICS QUESTIONS FOR JAMB, WAEC, NECO AND GCE
30 FREE PHYSICS QUESTIONS
ANSMYQUES BLOG
The resultant of two perpendicular forces is 17N. if one of the forces is 8N, what is the second force? (a) 8N (b)9N (c) 15N (d) 25N
A body covers a distance of 200m when its velocity changes from 15m/s to 25m/s. determine its acceleration (a) 0.5m/s2 (b) 1 m/s2 (c)2 m/s2 (d) 4m/s2
Which of the following Newton’s laws explains why every motorist should buckle – up or use head rest? (a) Newton’s first law of motion (b) Newton’s second law of motion (c) Newton’s third law of motion (d) Newton’s first law of gravitation
Which of the following electromagnetic waves is least energetic? (a) radio wave (b) X – ray (c) ultra – violet rays (d) light
The use of towel after having bath to dry off water can be explained using (a) surface tension (b) cohesion (d) adhesion (d) capillarity
A projectile is fired at an angle of 600 to the vertical. If the time of flight is 6s. Find the velocity of projection. (a) 34ms-1 (b) 60ms-1 (c) 69ms-1 (d) 120ms-1
A body of mass 800g is executing simple harmonic motion. Its maximum kinetic energy is 40J and its frequency is
For a ball thrown vertically upwards, the quantity which remains the same is (a) displacement (b) speed (c) kinetic energy (d) acceleration
An object of weight 80N on earth is taken to a planet where the acceleration due to gravity is one – third of its value on earth. The weight of the object on the planet is (a) 48N (b) 12N (c) 27N (d) 36N [g = 10m/s2]
The equation PaVbTc = constant reduces to Charles law if (a) a = 1, b = 1 and c = 0 (b) a = 1, b = 0 and c = -1 (c) a = 0, b = 1 and c = 1 (d) a = 0, b = 1 and c = -1
The quantity of heat needed to raise the temperature of a body by 1K is the body’s (a) heat capacity (b) internal energy (c) specific heat capacity (d) latent heat of fusion
A ball is thrown vertically into the air with an initial velocity u, what is the greatest height reached? (a)
The length of a rod is measured to be 4.6cm, most likely this is measured using (a) meter rule (b) tape rule (c) vernier caliper (d) micrometer screw gauge
A constant force of 40N acting on a body initially at rest gives an acceleration of 0.1ms-2 for 4s. calculate the work done by the force (a) 8J (b) 10J (c) 32J (d) 160J
A body of specific heat capacity 450Jkg-1k-1 falls to the ground from rest through a vertical height of 20m. assuming conservation of energy, calculate the change in temperature of the body on striking the ground level (g =10ms-2) (a)
Which of the following is a mechanical transverse wave (a) sound wave (b) water wave at a depth (c) water wave at the surface (d) wave generated from a vibrating spring
Which of the following is not correct about work? (a) it is product of force and displacement (b) it is a scalar quantity (c) it has the same dimension as moment (d) it has the same dimension as power
A spring gives a length of 24.2cm when 200N force is applied and gives a length of 25.6cm when a force of 500N is applied. What is its original length? (a) 22.7cm (b) 22.9cm (c) 23.1cm (d) 23.3cm
Force per unit length of an elastic material s called (a) elastic constant (b) young’s modulus (c) tensile stress (d) tensile strain
Which of these gives the relationship between superficial and cubic expansivity? (a)β =
If an object whose mass is 3kg moves in a circular path of radius 70cm, records a speed of 21m/s. what is the result of angular velocity? (a) 40 rads-1 (b) 10 rads-1 (c) 30 rads-1 (d) 50 rads-1
The highest density of water is obtained at (a) 00C (b) 40C (c) 80C (d) 100C
The dimension of x, y and z respectively in the expression MxYyZz for the universal gravitational constant G are (a) 2, - 3, - 2 (b) -1, 3, -2 (c) -1, 2, -3 (d) -2, -1, 3
Which of these cannot be used to measure the temperature of a substance? (a) expansivity of the liquid (b) change in resistance of a conductor (c) change in colour (d) thermoelectric effect
When impurity such as alcohol is mixed with pure water, the boiling point of the water (a) increases (b) decreases (c) is unaffected (d) increases then decreases
Steel bars, each of length 3.0m at 280C are to be used for constructing a railway line. If the linear expansivity of steel is 1.0 x 10-5 0C, what is the safety gap that must be left between successive bars if the highest temperature expected is 400C? (a) 1.2 x 10-1cm (b) 8.4 x 10-2cm (c) 7.2 x 10-2cm (d) 3.6 x 10-2cm
I. A moving body can be at equilibrium II. A body in translational equilibrium has net force of zero III. A body in rotational equilibrium has a net moment of zero IV. A body at rest is in a state of equilibrium. Which of the above statements are correct? (a) I, II, III and IV (b) I, II and III only (c) I, III and IV only (d) II, III and IV only
Which of the following bodies is in a state of neutral equilibrium?
(b)
(c) (d)
Four forces are acting on a particle O as sown in the diagram. What is the net vertical force? (a) 35N (b) 65N (c) 95N (d) 110N
A platinum resistance thermometer has a resistance of 5Ω at 00C and 9 Ω at 1000C. assuming that resistance changes uniformly with temperature, calculate the resistance of the thermometer when the temperature is 450C (a) 4.5 Ω (b) 6.8 Ω (c) 3.2 Ω (d) 5.4 Ω
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